Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 13, NWS Wilmington, OH

April 12, 1994Crawford County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 12, 1994, 11:28 PM EDT for Crawford County, Ohio. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 11:28 PM EDT (03:28 UTC)
Expired
Apr 13, 1994, 12:30 AM EDT
In force
62 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Crawford County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 3.5 hours before the alert went out and 151 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Dayton/James M C, OH at 00:00Z on 1994-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 532 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dayton/James M C, OH at 00:00Z on 1994-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
532 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
303 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMFD 130328
SVRMFD
OHC033-130430-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MANSFIELD OH
1128 PM EDT TUE APR 12 1994
 
THE NATIONAL WEATHER SERVICE IN MANSFIELD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN NORTH CENTRAL OHIO
 
   ...CRAWFORD COUNTY
 
AT 1125 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE
SEVERE THUNDERSTORM IN NORTHER MARION COUNTY. THIS STORM WAS NEAR THE
CITY OF MARION AND MOVING TO THE NORTHEAST AT 45 MILES AN HOUR. ONE HALF
INCH HAIL WAS REPORTED WITH THIS STORM AS IT MOVED THROUGH EASTERN LOGAN
COUNTY.
 
THIS STORM WILL MOVE INTO CRAWFORD COUNTY BY 1140 PM PASSING BETEEN
BUCYRUS AND GALION.
 
 
SEVERE THUNDERSTORMS MAY PRODUCE DAMAGING WINDS... FREQUENT
LIGHTNING AND HEAVY RAINS WHICH MAY CAUSE FLOODING OF DRAINAGE
SYSTEMS. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TO^RNADOES WITH LITTLE OR NO ADVANCE WARNING.
 
 
 
CURRY
NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 12, 9:59 PM EDT, 1 hour 29 minutes before
INZ066-073-074-075-080-OHZ070-071-072-077-078-079-080-KYZ089-090-
091-092-093-094-095-096-097-099-122200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE CINCINNATI OH
459 PM EDT (359 PM EST) TUE APR 12 1994

THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE
THUNDERSTORM WATCH FOR PARTS OF SOUTHWEST OHIO AND SOUTHEAST INDIANA.
THE WATCH WILL BE IN EFFECT UNTIL 300 AM EDT WEDNESDAY MORNING.

THE WATCH INCLDES THE OHIO COUNTIES OF HAMILTON...BUTLER...AND WARREN
AND INCLUDES THE CITY OF CINCINNATI.  DEARBORN COUNTY IN INDIANA IS ALSO
INCLUDED IN THE WATCH INCLUDING THE CITY OF LAWRENCEBURG.

AT 945 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS WERE
DEVELOPING QUICKLY ACROSS SOUTHWEST OHIO...NORTHERN KENTUCKY...AND
EASTERN INDIANA NEAR AND JUST SOUTHWEST OF FORT WAYNE.

THE HEAVIEST STORMS WERE LOCATED OVER KENTUCKY IN A LINE FROM 30 MILES
NORTHEAST OF LOUISVILLE TO MAYSVILLE KENTUCKY...50 MILES SOUTHEAST OF
CINCINNATI...TO JACKSON COUNTY OHIO...60 MILES SOUTH OF COLUMBUS.

THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR.

RAPS
Special weather statement, Apr 12, 10:03 PM EDT, 1 hour 25 minutes before
OHZ024-025-026-034-035-043-044-042-051-052-053-060-061-062-130300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTON OH
1002 PM EDT TUE APR 12 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR BOTH THE MIAMI VALLEY
AND WEST CENTRAL OHIO UNTIL 3 AM TONIGHT...

SHOWERS AND THUNDERSTORMS WERE DEVELOPING ACROSS EASTERN INDIANA AND
WESTERN OHIO LATE THIS EVENING.

AT 1000 PM NATIONAL WEATHER SERVICE RADAR INDICATED A THUNDERSTORM OVER
EASTERN MONTGOMERY AND WESTERN GREENE COUNTIES. THIS THUNDERSTORM WAS
MOVING TO THE NORTHEAST AT 30 MILES AN HOUR AND WILL BE AFFECTING CLARK
COUNTY BY 1020 PM.

OTHER SHOWERS AND THUNDERSTORMS WERE IN NORTHEASTERN INDIANA AND MOVING
TO THE NORTHEAST AT 30 MILES AN HOUR. SOME OF THESE THUNDERSTORMS WILL
BE AFFECTING MERCER AND VAN WERT COUNTIES BY 1100 PM. THESE
THUNDERSTORMS HAVE A HISTORY OF PRODUCED SMALL HAIL AND WIND GUSTS TO
50 MILES AN HOUR.

PLEASE STAY TUNED TO NOAA WEATHER RADIO OR THE LOCAL MEDIA FOR THE
LATEST ON THESE DEVELOPING THUNDERSTORMS.

TIPTON
Special weather statement, Apr 12, 10:23 PM EDT, 1 hour 5 minutes before
OHZ044-052-053-130330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTON OH
1022 PM EDT TUE APR 12 1994

A STRONG THUNDERSTORM WITH HEAVY RAIN...SMALL HAIL AND WIND GUSTS TO 45
MILES AN HOUR WAS OVER WESTERN CLARK COUNTY LATE THIS EVENING.

AT 1020 PM NATIONAL WEATHER SERVICE RADAR SHOWED AN INTENSIFYING
THUNDERSTORM IN WESTERN CLARK COUNTY. THE THUNDERSTORMS WAS MOVING TO
THE NORTHEAST AT 30 MILES AN HOUR.

A HAM RADIO OPERATOR WITH WIND EQUIPEMENT REPORT WIND GUSTING TO 45
MILES AN HOUR AND PEA SIZE HAIL AT 1015 PM.

THIS THUNDERSTORM WILL BE MOVING INTO CHAMPAIGN COUNTY AND WILL BE
AFFECTING THE CITY OF URBANA BY 1040 PM.

IF THREATENING WEATHER APPROACHES PLEASE TAKE S"HELTER AND STAY TUNED TO
NOAA WEATHER RADIO FOR LATEST STORM REPORTS.

TIPTON
Special weather statement, Apr 12, 10:51 PM EDT, 37 minutes before
OHZ053-061-062-130345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DAYTON OH
1049 PM EDT TUE APR 12 1994

STRONG THUNDERSTORMS WITH HEAVY RAIN...PEA SIZE HAIL AND WIND GUSTS TO
45 MILES AN HOUR WERE JUST SOUTH OF GREENE COUNTY LATE THIS EVENING.

AT 1050 PM NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS
15 MILES TO THE SOUTHEAST OF DAYTON. THESE THUNDERSTORMS WERE MOVING TO
THE NORTHEAST AT 30 MILES AN HOUR AND WILL BE AFFECTING THE CITY OF
XENIA IN GREENE COUNTY BY 1110 PM.

THESE STORMS HAVE THE CAPABILITY OF PRODUCING PEA SIZE HAIL AND WIND
GUSTS TO 45 MILES AN HOUR.

IF THREATNING WEATHER APPROACHES PLEASE TAKE SHELTER AND STAY TUNED TO
NOAA WEATHER RADIO FOR THE LATEST STORM REPORTS.

TIPTON

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 10:00 PM EDTSevere Thunderstorm WarningILNBrown, Clermont60 min
Apr 12, 11:43 PM EDTSevere Thunderstorm WarningILNMorrow62 min
Apr 13, 12:00 AM EDTSevere Thunderstorm WarningILNRichland60 min
Apr 13, 12:18 AM EDTSevere Thunderstorm WarningILNAshland57 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1994Every severe thunderstorm warning in 1994

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.